CN110821479B - Underground traction device for avoiding pressure difference to meet clamping in cable logging - Google Patents
Underground traction device for avoiding pressure difference to meet clamping in cable logging Download PDFInfo
- Publication number
- CN110821479B CN110821479B CN201911115353.5A CN201911115353A CN110821479B CN 110821479 B CN110821479 B CN 110821479B CN 201911115353 A CN201911115353 A CN 201911115353A CN 110821479 B CN110821479 B CN 110821479B
- Authority
- CN
- China
- Prior art keywords
- gear
- motor
- logging
- traction device
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims 1
- 238000005461 lubrication Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to an underground traction device for avoiding pressure difference from being blocked in cable logging in the petroleum drilling industry, which comprises a motor, a motor gear, a reduction gear, an incomplete gear, a rack, a push rod, a swing sheet, a sensor and the like. When the sensor is in contact with the borehole wall or mud cake, a signal is transmitted to the motor. The logging cable provides power for the motor to drive the motor gear to rotate. The motor gear and the reduction gear are bevel gears and are in meshing transmission. The rack is made to reciprocate by the uniform rotation of the incomplete gear coaxial with the reduction gear, and the swing rod is driven by the push rod to apply thrust to the well wall or mud cake by the swing sheet, so that the traction device is far away from the well wall or mud cake, and the pressure difference of the logging device is prevented from being blocked. The invention has the advantages of simple structure, low cost and novel originality. The combination of the incomplete gear, the rack, the push rod, the swing rod and the swing sheet ensures the distance between the device and the mud cake, is favorable for avoiding the pressure difference from blocking and ensures the completion of cable logging.
Description
Technical Field
The invention relates to the technical field of downhole tools of oil and gas fields, in particular to a downhole traction device for cable logging to avoid differential pressure from being blocked.
Background
In order to obtain the actual borehole structure and various borehole data in the well in time and obtain the actual information in the well to ensure the smooth proceeding of the subsequent drilling and production work, the logging work is required.
In directional well cable logging, can adhere to more mud cake on the wall of a well of open hole well section, when logging instrument is close the wall of a well and is absorbed in the mud cake, the pressure differential that drilling fluid and formation pressure caused can make logging instrument card can't continue to transfer at this well section to lead to the logging failure. Therefore, the important condition that the logging instrument is prevented from being stuck due to pressure difference is that the logging instrument is prevented from being stuck due to the pressure difference, and the underground traction device has the main functions of preventing the logging instrument from being stuck due to the pressure difference and ensuring the smooth operation of cable logging.
Disclosure of Invention
The purpose of the invention is: according to the principle that the differential pressure of the logging instrument meets the clamp, the logging instrument is prevented from being sunk into a mud cake, and the underground traction device which is simple in structure and low in cost and can effectively prevent the differential pressure of the logging instrument from meeting the clamp is designed.
In order to achieve the purpose, the invention adopts the technical scheme that: the cable logging underground traction device comprises an end cover, a logging cable, a motor shaft, a motor gear, a reduction gear, a gear shaft, an incomplete gear, a deep groove ball bearing, a rack, a sensor, a push rod, a swing sheet and a base.
The speed reduction gear, the gear shaft, the incomplete gear, the rack, the push rod, the sensor, the swinging piece and the swinging rod form a transmission mechanism, and three transmission mechanisms are distributed around the device at intervals of 120 degrees between every two transmission mechanisms.
The motor gear is fixed on the motor shaft through key connection.
The number of teeth of the motor gear is less than that of the reduction gear, and the two gears are both bevel gears, so that the force transmission direction is changed through meshing transmission.
The reduction gear and the incomplete gear are fixedly connected on the gear shaft through keys, and the two gears realize coaxial rotation.
The incomplete gear is only provided with gear teeth on a 180-degree circular surface, and internal teeth are uniformly distributed at two ends of the incomplete gear in the length direction of the rack. The gear is embedded in the rack, and the two components are in internal meshing transmission. Because the gear is an incomplete gear, the gear teeth of the incomplete gear can only be in meshed transmission with one side of the rack. Therefore, when the incomplete gear rotates at a constant speed, the rack can do reciprocating motion along the length direction.
The rack, the push rod, the swing rod and the swing sheet are hinged through slotted cylinder head screws. When the rack moves upwards, the push rod moves upwards, so that the swing rod moves inwards; when the rack moves downwards, the push rod moves downwards, so that the swing rod moves outwards to enable the swing sheet to apply thrust to the well wall. The reaction force of the well wall keeps the device away from the well wall so as to prevent the logging instrument from sinking into mud cakes.
The swing rod is hinged with the swing rod support through a slotted cylinder head screw. The swing rod support is fixed on the base through a support screw. The end covers are connected into a whole through four end cover screws on the ribbed plate; the base is connected into a whole through four base screws distributed at two ends; the end cover and the base are connected into a whole through three pairs of fastening screws distributed on the periphery of the device at intervals of 120 degrees.
The invention has the following advantages: the invention provides a brand-new design scheme of a cable logging underground traction device. When the cable logging is carried out, the motor drives the motor gear to rotate at a constant speed, so that the three swing rods distributed around the device continuously swing, and the distance between the device and the well wall is kept. The logging instrument is prevented from sinking into a well wall mud cake of the open hole section, so that the logging instrument is prevented from being blocked due to pressure difference in the open hole section. Meanwhile, the invention has the advantages of simple structure, low cost and easy installation and operation.
Drawings
FIG. 1 is a schematic cross-sectional view of a downhole tractor according to the present invention for wireline logging to avoid differential pressure sticking.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of incomplete gear and rack meshing.
In the figure: 1-end cover, 2-end cover screw, 3-logging cable, 4-motor, 5-motor shaft, 6-motor gear, 7-reduction gear, 8-gear shaft, 9-incomplete gear, 10-deep groove ball bearing, 11-rack, 12-sensor, 13-swinging piece, 14-push rod, 15-swinging rod, 16-base, 17-swinging rod support, 18-support screw, 19-fastening screw, 20-base screw and 21-slotted cylinder head screw.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1, 2, 3 and 4, the underground traction device for avoiding differential pressure from encountering a card for cable logging comprises an end cover (1), an end cover screw (2), a logging cable (3), a motor (4), a motor shaft (5), a motor gear (6), a reduction gear (7), a gear shaft (8), an incomplete gear (9), a deep groove ball bearing (10), a rack (11), a sensor (12), a swing sheet (13), a push rod (14), a swing rod (15), a base (16), a swing rod support (17), a support screw (18), a fastening screw (19), a base screw (20) and a slotted cylinder head screw (21); the sensor (12) is in contact with a well wall or a mud cake and then transmits a signal to the motor (4), the motor (4) is started and transmits power to the motor gear (6) through the motor shaft (5) by key connection, and the motor gear (6) and the reduction gear (7) are in meshing transmission; a motor gear (7) and an incomplete gear (9) are fixedly connected on a gear shaft (8) through keys, a push rod (14) is hinged with a rack (11) through a slotted cylindrical head screw (19), the push rod (14) is hinged with a swing rod (15) through the slotted cylindrical head screw (19), the swing rod (15) is hinged with a swing rod support (17) through the slotted cylindrical head screw (19), and a swing sheet (13) is hinged with the swing rod (15) through the slotted cylindrical head screw (19).
Claims (9)
1. The utility model provides a be used for cable logging to avoid differential pressure to meet downhole traction device of card which characterized in that: the traction device mainly comprises an end cover (1), an end cover screw (2), a logging cable (3), a motor (4), a motor shaft (5), a motor gear (6), a reduction gear (7), a gear shaft (8), an incomplete gear (9), a deep groove ball bearing (10), a rack (11), a sensor (12), a swinging piece (13), a push rod (14), a swinging rod (15), a base (16), a swinging rod support (17), a support screw (18), a fastening screw (19), a base screw (20) and a slotted cylinder head screw (21); the motor (4) transfers power to the motor gear (6) through the motor shaft (5) by key connection, and the motor gear (6) and the reduction gear (7) are in meshing transmission; the reduction gear (7) and the incomplete gear (9) are fixed on a gear shaft (8) by key connection, a push rod (14) is hinged with a rack (11) through a slotted cylindrical head screw (21), the push rod (14) is hinged with a swing rod (15) through the slotted cylindrical head screw (21), the swing rod (15) is hinged with a swing rod support (17) through the slotted cylindrical head screw (21), and a swing sheet (13) is hinged with the swing rod (15) through the slotted cylindrical head screw (21).
2. The underground traction device for cable logging to avoid differential pressure blockage according to claim 1, wherein the reduction gear (7), the gear shaft (8), the incomplete gear (9), the deep groove ball bearing (10), the rack (11), the push rod (14), the swing rod (15) and the swing sheet (13) form a group of mechanisms, and the three groups of mechanisms are distributed around the traction device at an interval of 120 degrees in pairs to provide thrust for the traction device to leave a mud cake on a well wall.
3. A downhole pulling apparatus for wireline logging to avoid differential pressure sticking as claimed in claim 1, wherein the sensor (12) transmits a signal to the motor (4) to start and rotate the motor shaft (5) after contacting the borehole wall or mudcake.
4. The downhole traction device for cable logging to avoid differential pressure from being stuck according to claim 1, wherein the motor gear (6), the reduction gear (7) and the incomplete gear (9) are respectively fixed on the motor shaft (5) and the gear shaft (8) through key connection.
5. The downhole traction device for wireline logging to avoid differential pressure sticking as claimed in claim 1, wherein the motor gear (6) and the reduction gear (7) are bevel gears, and the bevel gears are engaged to change the force transmission direction.
6. The downhole traction device for cable logging to avoid differential pressure jamming according to claim 1, wherein gear teeth are distributed on the circle surface of the incomplete gear (9) for only 180 degrees, internal teeth are uniformly distributed at two ends of the rack (11) in the length direction, the incomplete gear (9) is embedded into the rack (11), and only one side of the rack (11) is meshed with the incomplete gear (9) forever.
7. A downhole pulling apparatus for wireline logging while avoiding differential pressure sticking as claimed in claim 1, wherein the pendulum support (17) is fixed to the base (16) by four support screws (18).
8. A downhole pulling apparatus for wireline logging to avoid differential pressure sticking as in claim 1, wherein the deep groove ball bearing (10) is equipped with sealing rings and end caps, sealed and lubricated by grease lubrication.
9. The downhole traction device for cable logging to avoid differential pressure from being jammed according to claim 1, wherein the end cap (1) is in two parts and is connected into a whole by four end cap screws (2); the base (16) is divided into two parts which are connected into a whole through four base screws (20) at two ends; the end cover (1) and the base (16) are connected into a whole through three pairs of fastening screws (19) which are distributed on the periphery of the device at intervals of 120 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115353.5A CN110821479B (en) | 2019-11-14 | 2019-11-14 | Underground traction device for avoiding pressure difference to meet clamping in cable logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911115353.5A CN110821479B (en) | 2019-11-14 | 2019-11-14 | Underground traction device for avoiding pressure difference to meet clamping in cable logging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110821479A CN110821479A (en) | 2020-02-21 |
| CN110821479B true CN110821479B (en) | 2022-04-22 |
Family
ID=69555506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911115353.5A Active CN110821479B (en) | 2019-11-14 | 2019-11-14 | Underground traction device for avoiding pressure difference to meet clamping in cable logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110821479B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782772A (en) * | 2021-01-05 | 2021-05-11 | 上海应用技术大学 | Telescopic detection electrode device for well logging |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206459U (en) * | 1986-08-28 | 1987-08-19 | 辽阳市恒温仪器厂 | Portable mud cake viscosity coefficient detector |
| CN2141460Y (en) * | 1992-06-24 | 1993-09-01 | 邓友明 | Block eliminating tube for well measuring |
| CN101509369A (en) * | 2009-03-13 | 2009-08-19 | 盘锦纵横声光电子技术有限责任公司 | Horizontal well thruster raising tractor for measuring under well gravity force |
| CN202249866U (en) * | 2011-04-20 | 2012-05-30 | 中国石油大学(北京) | Underground differential-speed cable traction device |
| CN102561969A (en) * | 2011-12-28 | 2012-07-11 | 付吉平 | Light and convenient resistance meeting preventive pressured cable lowering conveyor |
| CN103573253A (en) * | 2013-10-11 | 2014-02-12 | 郑州宜源翔石油科技有限公司 | Unblocking device of cable logging instrument |
| CN106326513A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Cable tensile force calculating and control method in logging system |
| CN107461168A (en) * | 2017-10-06 | 2017-12-12 | 西南石油大学 | A kind of continuous oil pipe operation automatic blending and pumping integral system |
| CN207420526U (en) * | 2017-10-16 | 2018-05-29 | 西南石油大学 | A kind of anti-hydrogen sulfide well head pressure equipment of high pressure |
| CN108179979A (en) * | 2018-01-03 | 2018-06-19 | 大连赢得科技有限公司 | It is a kind of that there is the rock drilling device of depositing dust |
| CN108751662A (en) * | 2018-07-02 | 2018-11-06 | 广州市永蓝环保科技有限公司 | A kind of sludge slurry filter press |
| CN108798521A (en) * | 2018-08-07 | 2018-11-13 | 长江大学 | A kind of reciprocating axial impact pressue device |
| JP2018202225A (en) * | 2018-10-04 | 2018-12-27 | 株式会社三洋物産 | Game machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2454880B (en) * | 2007-11-21 | 2012-02-15 | Schlumberger Holdings | Drilling system |
| CN207513593U (en) * | 2017-10-28 | 2018-06-19 | 中国海洋石油总公司 | A kind of power of underground crawl device and backup system |
-
2019
- 2019-11-14 CN CN201911115353.5A patent/CN110821479B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86206459U (en) * | 1986-08-28 | 1987-08-19 | 辽阳市恒温仪器厂 | Portable mud cake viscosity coefficient detector |
| CN2141460Y (en) * | 1992-06-24 | 1993-09-01 | 邓友明 | Block eliminating tube for well measuring |
| CN101509369A (en) * | 2009-03-13 | 2009-08-19 | 盘锦纵横声光电子技术有限责任公司 | Horizontal well thruster raising tractor for measuring under well gravity force |
| CN202249866U (en) * | 2011-04-20 | 2012-05-30 | 中国石油大学(北京) | Underground differential-speed cable traction device |
| CN102561969A (en) * | 2011-12-28 | 2012-07-11 | 付吉平 | Light and convenient resistance meeting preventive pressured cable lowering conveyor |
| CN103573253A (en) * | 2013-10-11 | 2014-02-12 | 郑州宜源翔石油科技有限公司 | Unblocking device of cable logging instrument |
| CN106326513A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Cable tensile force calculating and control method in logging system |
| CN107461168A (en) * | 2017-10-06 | 2017-12-12 | 西南石油大学 | A kind of continuous oil pipe operation automatic blending and pumping integral system |
| CN207420526U (en) * | 2017-10-16 | 2018-05-29 | 西南石油大学 | A kind of anti-hydrogen sulfide well head pressure equipment of high pressure |
| CN108179979A (en) * | 2018-01-03 | 2018-06-19 | 大连赢得科技有限公司 | It is a kind of that there is the rock drilling device of depositing dust |
| CN108751662A (en) * | 2018-07-02 | 2018-11-06 | 广州市永蓝环保科技有限公司 | A kind of sludge slurry filter press |
| CN108798521A (en) * | 2018-08-07 | 2018-11-13 | 长江大学 | A kind of reciprocating axial impact pressue device |
| JP2018202225A (en) * | 2018-10-04 | 2018-12-27 | 株式会社三洋物産 | Game machine |
Non-Patent Citations (5)
| Title |
|---|
| Mesomechanics Finite-element Method for Determining the Shear Strength of Mudded Intercalation Materials;HU Qijun;《Journal of Wuhan University of Technology-Mater》;20161231;289-291 * |
| Research on dynamical overflow characteristics of a vertical H2S containing natural gas well;Liangjie Mao;《energy science & engineering》;20190801;2596-2619 * |
| 一字型蠕动式管道驱动行走机构力学性能分析;王强;《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》;20190115(第1期);9-38 * |
| 复杂井测井工艺流程及其配套设备的研究;胡国华;《中国优秀博硕士学位论文全文数据库(硕士)基础科学辑》;20170215(第2期);7-23 * |
| 深井、超深井钻柱失效的力学机理分析及预防对策;李庆光;《西部探矿工程》;20040630(第6期);64-66 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110821479A (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104060960A (en) | Self-straightening type underground drawing device | |
| CN201865568U (en) | Full-hydraulic multifunctional power head | |
| CN205977088U (en) | High -efficient drilling equipment is used in fluorite mine reconnaissance | |
| CN110821479B (en) | Underground traction device for avoiding pressure difference to meet clamping in cable logging | |
| MX2013011232A (en) | Downhole driving unit having a hydraulic motor with a planetary gearing system. | |
| CN105350912B (en) | Downhole tool for reducing friction resistance of sliding directional drilling | |
| CN103306606B (en) | Planetary gear train energy-saving dual-layer drill for drilling of deep oil gas well | |
| CN102235463A (en) | Petroleum drilling trajectory-controlled harmonic gear transmission device | |
| CN107288537B (en) | Double-shaft transfer drilling device | |
| CN201206436Y (en) | Power transmission mechanism for rotary drill rig | |
| CN201650259U (en) | Harmonic gear transmission device used for petroleum drilling track control | |
| CN212317854U (en) | Turbine-driven continuous oil pipe hydraulic oscillator with harmonic reducer | |
| CN202926244U (en) | Guide screw drilling tool with rotatable centralizer | |
| EP2691596B1 (en) | Downhole driving unit having a hydraulic motor with a static cam ring | |
| CN201915846U (en) | Drill accelerator | |
| CN203978268U (en) | A kind of rotary digging drill power head device with high speed soil-throwing function | |
| CN205578550U (en) | Utilize fricative drilling rod clutch of liquid | |
| CN101403284B (en) | Down-hole tool and controllable segment sealing device for down-hole working barrel seal | |
| CN203905870U (en) | Self-centralizing downhole traction device | |
| CN102839947A (en) | Subsurface electric control stepless position adjusting structure | |
| CN112647855B (en) | Intelligent high-precision punching equipment for subway construction | |
| CN103498638B (en) | A kind of top driving device under water for deep layer continous sampling | |
| CN202914045U (en) | Underground electrically-controlled stepless position regulation structure | |
| CN206290228U (en) | A kind of coal mine drill pipe retracting device | |
| CN204186890U (en) | A kind of top-drive drilling gear reduction box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |